ASTM D5142-02ae1

Standard Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures

SCOPE
1.1 These instrumental test methods cover the determination of moisture, volatile matter, and ash, and the calculation of fixed carbon in the analysis of coal and coke samples prepared in accordance with Method D 2013 and Practice D 346. Results obtained through the use of the instrumental tests have been shown to differ from those obtained with Test Methods D 3173, D 3174, and D 3175 on some coals and cokes. Where a relative bias between the instrumental methods and Test Methods D 3173, D 3174, and D 3175 for proximate analysis of coal and coke are shown to exist, the instrumental results shall be corrected or the instrument calibrated using samples of known proximate analysis. Test Methods D 3173, D 3174, and D 3175 shall be considered the referee test methods. The instrumental test methods are not applicable to thermogravimetric analyzers using microgram size samples.
1.2 The moisture value determined is used for calculating other analytical results to a dry basis. When used in conjunction with the air dry loss moisture, as determined in accordance with Method D 2013, Test Method D 3302, or Practice D 346, the calculated total moisture can be used to convert dry basis analytical results to the as-received basis.
1.3 The result of the ash determinations can be applied in the ultimate analysis, Practice D 3176.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Oct-2002
• ICS: 75.160.10 - Solid fuels
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.21 - Methods of Analysis

Relations

• Replaces: ASTM D5142-02a - Standard Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures
• Effective Date: 10-Oct-2002
• Replaced By: ASTM D5142-04 - Standard Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures
• Effective Date: 01-Jul-2004
• Referred By: ASTM D3175-20 - Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
• Effective Date: 10-Oct-2002
• Referred By: ASTM D6721-01(2015) - Standard Test Method for Determination of Chlorine in Coal by Oxidative Hydrolysis Microcoulometry
• Effective Date: 10-Oct-2002
• Referred By: ASTM D5016-16 - Standard Test Method for Total Sulfur in Coal and Coke Combustion Residues Using a High-Temperature Tube Furnace Combustion Method with Infrared Absorption
• Effective Date: 10-Oct-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
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Designation: D 5142 – 02a
Standard Test Methods for
Proximate Analysis of the Analysis Sample of Coal and
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Coke by Instrumental Procedures
This standard is issued under the fixed designation D 5142; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
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e NOTE—Sections 12.1.3 and 12.1.4 were editorially changed into Tables 1 and 2 in June 2004.
1. Scope 2. Referenced Documents
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1.1 These instrumental test methods cover the determination 2.1 ASTM Standards:
of moisture, volatile matter, and ash, and the calculation of D 121 Terminology of Coal and Coke
fixed carbon in the analysis of coal and coke samples prepared D 346 Practice for Collection and Preparation of Coke
in accordance with Method D 2013 and Practice D 346. Re- Samples for Laboratory Analysis
sults obtained through the use of the instrumental tests have D 1757 Test Method for Sulfate Sulfur in Ash from Coal
been shown to differ from those obtained with Test Methods and Coke
D 3173, D 3174, and D 3175 on some coals and cokes. Where D 2013 Practice for Preparing Coal Samples for Analysis
a relative bias between the instrumental methods and Test D 3173 Test Method for Moisture in the Analysis Sample of
Methods D 3173, D 3174, and D 3175 for proximate analysis Coal and Coke
of coal and coke are shown to exist, the instrumental results D 3174 Test Method for Ash in the Analysis Sample of Coal
shall be corrected or the instrument calibrated using samples of and Coke from Coal
known proximate analysis. Test Methods D 3173, D 3174, and D 3175 Test Method for Volatile Matter in the Analysis
D 3175 shall be considered the referee test methods. The Sample of Coal and Coke
instrumental test methods are not applicable to thermogravi- D 3176 Practice for Ultimate Analysis of Coal and Coke
metric analyzers using microgram size samples. D 3180 Practice for Calculating Coal and Coke Analyses
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1.2 The moisture value determined is used for calculating from As-Determined to Different Bases
other analytical results to a dry basis. When used in conjunc- D 3302 Test Method for Total Moisture in Coal
tion with the air dry loss moisture, as determined in accordance
3. Terminology
with Method D 2013, Test Method D 3302, or Practice D 346,
the calculated total moisture can be used to convert dry basis 3.1 For definitions of terms used in this test method, refer to
Terminology D 121.
analytical results to the as-received basis.
1.3 The result of the ash determinations can be applied in
4. Summary of Test Methods
the ultimate analysis, Practice D 3176.
4.1 Moisture is determined by establishing the loss in mass
1.4 This standard does not purport to address all of the
of the analysis specimen of coal or coke when heated under
safety concerns, if any, associated with its use. It is the
rigidly controlled conditions of temperature, time, atmosphere,
responsibility of the user of this standard to establish appro-
specimen mass, and equipment specifications.
priate safety and health practices and determine the applica-
4.2 Volatile matter is determined by measuring the loss in
bility of regulatory limitations prior to use.
mass of the moist or dried analysis specimen of coal or coke
when heated under rigidly controlled conditions. If appropriate,
the measured mass loss establishes the volatile matter after
correcting for the moisture content.
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These test methods are under the jurisdiction of ASTM Committee D05 on Coal
and Coke and are the direct responsibility of Subcommittee D05.21 on Methods of
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Analysis. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 10, 2002. Published January 2003. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Orginally approved in 1990. Last previous edition approved in 1998 as Standards volume information, refer to the standard’s Document Summary page on
D 5142–90(1998). the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D 5142 – 02a
4.3 Ash is determined by measuring the mass of the residue crucibles containing the specimens. The furnace or oven shall
remaining after burning the coal or coke specimen under be constructed so the cavity is surrounded by a suitable
rigidly controlled conditions of specimen mass, temperature, refactory and insulated so as to develop a uniform temperature
time, atmosphere, and equipment specifications. in all parts of the cavity but with a minimum free space. The
4.4 In these test methods, mo
...